Millions of people spend a few relaxing moments each day working on crossword puzzles. But few people know these brain-teasers were the invention of one man 100 years ago. Faith Salie reports.
As Benedict Cumberbatch returns to PBS playing a modern-day Sherlock Holmes, Mo Rocca dons a deerstalker and tries to solve the mystery of the lasting appeal of Sir Arthur Conan Doyle's great detective.
White House: "Delicate, but not insurmountable" details remain in proposed peace plan for war in Ukraine; New book dives into secret languages around us.
